Boxing legend Mike Tyson‘s 4-year-old daughter Exodus is in critical condition Monday after an accident in a central Phoenix home when she was discovered hanging from a treadmill by her brother.

According to KNXV-TV, their mother then ran into the room, cut her down, and started giving her CPR. Fire officials responding to the scene took over before transporting her to St. Joseph’s Hospital and Medical Center.

Phoenix Police Sgt. Andy Hill said it appeared a cord had been wrapped around the child’s neck.

Tyson reportedly arrived to the hospital via cab late in the afternoon.